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{{wiktionary|monad}}
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'''Monad''' may refer to:
The word '''monad''' comes from the ] word μονάς (from the word μόνος, which means "one", "single", "unique") and has had many meanings in different contexts:


{{TOC right}}
#Among the ] (followers of ]) the '''monad''' was the first thing that came into existence. The monad begat the ''dyad'', which begat the numbers, the numbers begat points, which begat lines, which begat two-dimensional entities, which begat three-dimensional entities, which begat bodies, which begat the four ]s ], ], ] and ], from which the rest of our world is built up. The monad was thus a central concept in the ] of the Pythagoreans, who held the belief that the world was - ''literally'' - built up by numbers. (The source of this claim is ]' book ''Lives of Eminent Philosophers''.)
==Philosophy==
#Within certain variations of ], especially those inspiered by ], the '''monad''' was the higher being which created lesser gods, or elements (similar to ]s). This view was according to ] inspired by the ].
* ], a term meaning "unit"
#In the writings of the ] ], '''monads''' are atomistic mental objects which experience the world from a particular point of view. Leibniz's theory does not posit physical space; rather, physical objects are constructs of the collective experiences of monads. This way of putting it is misleading, however; monads do not interact with each other (are "windowless"), but rather are imbued at creation with all their future experiences in a system of ]. The arrangements of the monads make up the faith and structure of this world, which to Leibniz was "the best of all possible worlds".
**], the concept of "one essence" in the metaphysical and theological theory
#Within ]:
** ], the most primal aspect of God in Gnosticism
#* in ], a '''monad''' consists of all those numbers infinitesimally close to a given number;
* ''Great Monad'', an older name for the '']'' symbol
#* in ], a '''monad''', also known as '''triple''', is a type of ] important in the theory of ]. This term has a different root than the ones described above; it was formed by combining "monoid" and "triad". It is this categorical usage that has led to the one in functional programming explained below. See ].
* ''Monadologia Physica'', by ]
#In pure ]s such as ], '''monads''' are data types that encapsulate the functional ]-activity, in such a manner that the side-effects of IO are not allowed to spread out of the part of the program that is not functional (imperative). See ]
* '']'', by Gottfried Leibniz, a book about a basic unit of perceptual reality
#] describes its symbol as being a geometric representation of the '''monad'''.
* '' ]'', a 1564 book by John Dee describing a symbol of his own invention
#'''Monad''' is a codename for a ] that is up to come with ]. It includes many features borrowed from ] and ].


==Mathematics, science and technology==
{{msg:disambig}}
* ], a historical term for a simple unicellular organism
* ], a construction in category theory
* ], functional programming constructs that capture various notions of computation
* ], a 3-term complex
* ], the set of points infinitesimally close to a given point
* ], the code name for the PowerShell command line interface for Microsoft Windows

==Fictional entities==
* Monads, megastructures in Robert Silverberg's 1971 novel '']''
* Monad Proxy, a ]
* John Monad, the title character of the 2007 television series '']''
* Monad/Monado, a sword in the 2010 videogame '']''

==Other uses==
* ], a single note or pitch
* ], in Hapur, Uttar Pradesh, India
* The emblem of the ]

==See also==
* ]
* ]
* ], in abstract algebra
* {{lookfrom|Monad}}, for titles starting "Monad" or "Monadic"
* {{intitle|Monad}}

{{Disambiguation}}

Latest revision as of 15:15, 27 August 2024

Monad may refer to:

Philosophy

Mathematics, science and technology

Fictional entities

Other uses

See also

Topics referred to by the same term Disambiguation iconThis disambiguation page lists articles associated with the title Monad.
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